25 gallon, 3.5 hp air compressor - harbor freight...

25 gallon, 3.5 hp air compressor

99925set up and operating instructions

distributed exclusively by harbor Freight tools®.3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our website at: http://www.harborfreight.com

read this material before using this product. Failure to do so can result in serious injury. saVe this manual.

Copyright© 2008 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.

SKU 99925 For technical questions, please call 1-800-444-3353.

saVe this manualKeep this manual for the safety warn-

ings and precautions, assembly, operat-ing, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference.

important saFetY inFormation

in this manual, on the labeling, and all other information provid-ed with this product:

this is the safety alert symbol. it is used to alert you to potential personal injury hazards. obey all safety messages that follow this symbol to avoid possible injury or death.

danger indicates a hazardous

situation which, if not avoided, will result in death or serious injury.

Warning indicates a

hazardous situation which, if not avoided, could result in death or serious injury.

caution, used with the safety

alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

notice is used to address practices

not related to personal injury.

caution, without the safety alert

symbol, is used to address practices not related to personal injury.

general safety Warnings Warning read all safety warnings and instructions. Failure to follow the warnings and instructions may result in explosion, fire and/or serious injury. save all warnings and instructions for future reference.

Work area safety1. Keep work area clean and well lit. a. Cluttered or dark areas invite acci-dents.do not operate tools in explosive b. atmospheres, such as in the pres-ence of flammable liquids, gases or dust. Tools become hot which may ignite the dust or fumes.Keep children and bystanders c. away while operating a tool. Dis-tractions can cause you to lose con-trol.

electrical safety2. tool plugs must match the outlet. a. never modify the plug in any way. do not use any adapter plugs with grounded tools. Unmodified plugs and matching outlets will reduce risk of electric shock.avoid body contact with grounded b. surfaces such as pipes, radiators, ranges and refrigerators. There is


an increased risk of electric shock if your body is grounded.do not expose tools to rain or wet c. conditions. Water entering a tool will increase the risk of electric shock.do not abuse the cord. never use d. the cord for carrying, pulling or unplugging the tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entan-gled cords increase the risk of electric shock.if operating a tool in a damp loca-e. tion is unavoidable, use a ground Fault circuit interrupter (gFci) protected supply. Use of a GFCI reduces the risk of electric shock.do not use an extension cord with f. this product.

personal safety3. stay alert, watch what you are do-a. ing and use common sense when operating this tool. do not use this tool while you are tired or un-der the influence of drugs, alcohol or medication. A moment of inatten-tion while operating tools may result in serious personal injury.use personal protective equip-b. ment. always wear eye protection. Safety equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropri-ate conditions will reduce personal injuries.prevent unintentional starting. c. ensure the switch is in the off-po-sition before connecting to power source or moving the tool. do not overreach. Keep proper d. footing and balance at all times.

This enables better control of the tool in unexpected situations.dress properly. do not wear loose e. clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.only use safety equipment that f. has been approved by an appropri-ate standards agency. Unapproved safety equipment may not provide adequate protection. Eye protection must be ANSI-approved and breath-ing protection must be NIOSH-ap-proved for the specific hazards in the work area.

tool use and care4. do not force the tool. use the a. correct tool for your application. The correct tool will do the job better and safer at the rate for which it was designed.do not use the tool if the switch b. does not turn it on and off. Any tool that cannot be controlled with the switch is dangerous and must be repaired.disconnect the plug from the c. power source of the tool before making any adjustments, changing accessories, or storing tools. Such preventive safety measures reduce the risk of starting the tool acciden-tally.store idle tools out of the reach of d. children and do not allow persons unfamiliar with the tool or these instructions to operate it. Tools are dangerous in the hands of untrained users.


maintain tools. check for mis-e. alignment or binding of moving parts, breakage of parts and any other condition that may affect the tool’s operation. if damaged, have the tool repaired before use. Many accidents are caused by poorly main-tained tools.use the tool in accordance with f. these instructions, taking into ac-count the working conditions and the work to be performed. Use of the tool for operations different from those intended could result in a haz-ardous situation.

service5. have your tool serviced by a quali-a. fied repair person using only iden-tical replacement parts. This will ensure that the safety of the tool is maintained.

air compressor safety WarningsRisk of fire or explosion - do not 1. spray flammable liquid in a confined area or towards a hot surface. Spray area must be well-ventilated. Do not smoke while spraying or spray where spark or flame is present. Arcing parts - keep compressor at least 20 feet away from explosive vapors, such as when spraying with a spray gun.

Risk of bursting - do not adjust 2. regulator to result in output pressure greater than marked maximum pres-sure of attachment.

Risk of injury - do not direct air 3. stream at body. To reduce the risk of electric shock, do not expose to rain. Store indoors.

Do not use to supply breathing air.4.

Do not direct air flow from the Com-5. pressor at people or animals.

Industrial applications must follow 6. OSHA requirements.

Maintain labels and nameplates on 7. the tool. These carry important safety information. If unreadable or miss-ing, contact Harbor Freight Tools for a replacement.

Avoid unintentional starting. Prepare 8. to begin work before turning on the tool.

Do not leave the tool unattended 9. when it is plugged into an electrical outlet. Turn off the tool, and unplug it from its electrical outlet before leav-ing.

This product is not a toy. Keep it out 10. of reach of children.

WARNING: The brass components 11. of this product contain lead, a chemi-cal known to the State of California to cause birth defects (or other repro-ductive harm). (California Health & Safety code § 25249.5, et seq.)

People with pacemakers should 12. consult their physician(s) before use. Electromagnetic fields in close prox-imity to heart pacemaker could cause pacemaker interference or pacemak-er failure. In addition, people with pacemakers should: • Avoid operating alone. • Do not use with power switch locked on. • Properly maintain and inspect to avoid electrical shock. • Any power cord must be properly grounded. Ground Fault Circuit Inter-


rupter (GFCI) should also be imple-mented – it prevents sustained elec-trical shock.

Some dust created by power sand-13. ing, sawing, grinding, drilling, and other construction activities, contains chemicals known [to the State of Cali-fornia] to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • Lead from lead-based paints • Crystalline silica from bricks and ce-ment or other masonry products • Arsenic and chromium from chemi-cally treated lumber Your risk from these exposures var-ies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. (California Health & Safety Code § 25249.5, et seq.)

WARNING: Handling the cord on 14. this product will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. (Califor-nia Health & Safety Code § 25249.5, et seq.)

The warnings, precautions, and in-15. structions discussed in this instruction manual cannot cover all possible con-ditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

saVe these instructions.

grounding to preVent

electric shocK and death From incorrect grounding Wire connection: Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. do not modify the power cord plug provided with the tool. never remove the grounding prong from the plug. do not use the tool if the power cord or plug is damaged. if damaged, have it repaired by a service facility before use. if the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.

grounded tools: tools with three prong plugs

Tools marked with “Grounding Re-1. quired” have a three wire cord and three prong grounding plug. The plug must be connected to a properly grounded outlet. If the tool should


electrically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user, reducing the risk of electric shock. (see 3-prong plug and outlet.)

The grounding prong in the plug is 2. connected through the green wire in-side the cord to the grounding system in the tool. The green wire in the cord must be the only wire connected to the tool’s grounding system and must never be attached to an electrically “live” terminal. (see 3-prong plug and outlet.)

The tool must be plugged into an 3. appropriate outlet, properly installed and grounded in accordance with all codes and ordinances. The plug and outlet should look like those in the preceding illustration. (see 3-prong plug and outlet.)

symbology

Double Insulated

Canadian Standards Association

Underwriters Laboratories, Inc.

V~ Volts Alternating Current

a Amperes

n0 xxxx/min. No Load Revolutions per Minute (RPM)


speciFicationsElectrical Requirements 120 V~ / 60 Hz / 15 A

Air Outlet Size Two 1/4” 18 NPT

Air PressureAuto Shut-off at 125 PSIRestart at 90 PSI

Air Tank Capacity 25 Gallons

Air Flow Capacity 5.3 CFM @ 40 PSI4.0 CFM @ 90 PSI

Oil Tank Capacity 1 Quart

Oil Type 30W Non-Detergent Compressor Oil

Sound Level 98 dB @ 3’Motor 3.5 HP

unpacKingWhen unpacking, make sure that the

item is intact and undamaged. If any parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible.

instructions For putting into use read the entire important

saFetY inFormation section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

to preVent serious injurY

From accidental operation: turn the power switch of the tool to its “oFF” position and unplug the tool from its electrical outlet before assembling or making any adjustments to the tool.

note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual.

assemblyThread the Intake Filter (16) onto the 1. side of the motor, as shown below.

intake Filter (16)

Connect one or two 1/4” NPT air 2. hoses (rated 165 PSI or higher) to the Quick Couplers (25). See photo next page. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.

Incorporate an in-line oiler, shut-off 3. valve, regulator with pressure gauge, and filter for best service, as shown in the diagram below. An in-line shutoff valve is an important safety device because it controls the air supply even if the air hose is ruptured.

REV 08j


tool

air compressor

Quick coupler air hose

on reel

Filter

regulator with pressure gauge

male connector

male connector

Valve

Quick coupler

recommended air line components

oiler

operating instructions read the entire important

saFetY inFormation section at the beginning of this manual including all text under subheadings therein before set up or use of this product.


From accidental operation: turn the power switch of the tool to its “oFF” position and unplug the tool from its electrical outlet before performing any inspection, maintenance, or cleaning procedures.

Make sure the air tool’s throttle or 1. switch is in the off position.

Connect the tool that will be used for 2. the job to the airline.

Close the in-line safety valve be-3. tween the compressor and the tool.

Connect an air hose rated to the in-4. tended PSI that will be used with the tool to the Air Connection. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.

Plug the Power Cord into a grounded 5. 120 V electrical outlet.

Move the Power Switch up to the ON 6. position.power switch (23)

pressure regulator (20)

tank pressure gauge

tool pressure gauge

safety Valve (22)

Quick coupler (25)

Allow the Air Compressor to build up 7. pressure until it cycles off.

Adjust the air compressor’s Pressure 8. Regulator (20) so that the air output is enough to properly power the tool, but the output will not exceed the tool’s maximum air pressure at any time. Turn the knob clockwise to increase pressure and counter-clock-wise to decrease pressure. Adjust the pressure gradually, while check-


ing the air output gauge to set the right pressure range.

The Air Compressor will cycle up to 9. 125 PSI before shutting off. It will start to build pressure again when the PSI of the Compressor drops to 90 PSI.

If the Compressor becomes too hot 10. the circuit breaker will trip and it will shut off. If this happens; move the Power Switch to the OFF a. position; unplug the Air Compressor;b. wait until the Compressor cools c. down;plugging the Air Compressor back in d. will reset the circuit breaker;turn Power Switch back to the ON e. position and resume operation.

After the job is complete, move the 11. Power Switch to the OFF position.

Pull down on the Safety Valve by 12. Tank Pressure Gauge to release pressure. Squeeze the Trigger of the air tool to release pressure from the line.

Turn the Drain Valve (29), at the bot-13. tom of the Tank, two turns to release any built-up moisture. Close the valve after moisture has drained out. Do not remove the Drain Valve.

drain Valve

Disconnect the air hose and tool.14.

To prevent accidents, disconnect its 15. power supply after use. Clean, then store the tool indoors out of children’s reach.

REV 08j


maintenance and serVicing

Procedures not specifically explained in this manual must be performed only by a qualified technician.


From accidental operation: turn the power switch of the tool to its “oFF” position and unplug the tool from its electrical outlet before performing any inspection, maintenance, or cleaning procedures.

to preVent serious injurY From tool Failure: do not use damaged equipment. if abnormal noise or vibration occurs, have the problem corrected before further use.

cleaning, maintenance, and lubrication

BeFore each use,1. inspect the general condition of the tool. Check for loose screws, misalignment or binding of moving parts, cracked or broken parts, damaged electrical wir-ing, and any other condition that may affect its safe operation.

aFter use,2. clean external surfaces of the tool with clean cloth.

3. Warning! if the supply cord of this power tool is damaged, it must

be replaced only by a qualified service technician.

please read the FolloWing careFullY

THE MANUFACTURER AND/OR DISTRIBUTOR hAS PRovIDED thE PARtS LISt AND ASSEMbLy DIAgRAM IN thIS MANUAL AS A REfERENCE tooL oNLy. NEIthER thE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS qUALIfIED to MAkE ANy REPAIRS to thE PRoDUCt, oR thAt hE oR ShE IS qUALIfIED to REPLACE ANy PARtS of thE PRoDUCt. IN FACT, THE MANUFACTURER AND/OR DIStRIbUtoR ExPRESSLy StAtES thAt ALL REPAIRS AND PARtS REPLACEMENtS ShoULD bE UNDERtAkEN by CERtIfIED AND LICENSED tEChNICIANS, AND Not by thE bUyER. thE bUyER ASSUMES ALL RISk AND LIAbILIty ARISINg oUt of hIS oR hER REPAIRS to thE oRIgINAL PRoDUCt oR REPLACEMENt PARtS thEREto, oR ARISINg oUt of hIS oR hER INStALLAtIoN of REPLACEMENt PARtS thEREto.


troubleshootingproblem possible causes likely solutions

Overheating Poor ventilation. 1.

Dirty cooling surfaces.2. Compressor undersized for 3. application.

Move the compressor to an area with better 1. air circulation.Clean compressor.2. Check air requirements of tools.3.

Compressor operates, but with low air output

Valve or regulator loose or 1. leaking.Valve or regulator damaged. 2.

Air tank not pressurized yet.3.

Repair leaks. 1.

Have valve or regulator repaired by a 2. qualified technician.Allow pressure to build.3.

Incorrect pressure gauge reading

Pressure gauge worn or 1. damaged.

have pressure gauge replaced by a qualified 1. technician.

Follow all safety precautions whenever diagnosing or servicing the tool. disconnect air supply before service.


record product’s serial number here: note: If product has no serial number, record month and year of purchase instead.

note: Some parts are listed and shown for illustration purposes only, and are not avail-able individually as replacement parts.

parts listpart description Qty

1 Pad 22 Air Tank 13 Screw 44 Spacer 45 Washer 46 Bolt 47 Pump/Motor Assembly 18 Oil Plug 19 Elbow 1

10 Shroud 111 Transfer Tube 112 Grip 113 Washer 214 Screw 215 Screw 2

parts listpart description Qty

16 Intake Filter 117 Check Valve 118 Bleeder Tube 119 Pressure Gauge 220 Pressure Regulator 121 Plug 122 Safety Valve 123 Power Switch 124 Connector Block 125 Quick Coupler 226 Power Cord 127 Bolt 128 Pin 229 Drain Valve 230 Wheel 2


assemBlY diagram


limited 1 Year / 90 daY WarrantYHarbor Freight Tools Co. makes every effort to assure that its products meet high

quality and durability standards, and warrants to the original purchaser that for a period of one year from date of purchase that the tank is free of defects in materials and work-manship (90 days if used by a professional contractor or if used as rental equipment). Harbor Freight Tools also warrants to the original purchaser, for a period of ninety days from date of purchase, that all other parts and components of the product are free from defects in materials and workmanship. This warranty does not apply to damage due di-rectly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations out-side our facilities, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limita-tion of exclusion may not apply to you. thIS wARRANty IS ExPRESSLy IN LIEU of ALL othER wARRANtIES, ExPRESS oR IMPLIED, INCLUDINg thE wARRANtIES of MERChANtAbILIty AND fItNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid. Proof of purchase date and an explanation of the com-plaint must accompany the merchandise. If our inspection verifies the defect, we will ei-ther repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return re-paired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.

this warranty gives you specific legal rights and you may also have other rights which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

25 gallon, 3.5 hp air compressor - harbor freight...

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